Licensing

Every puzzle on tentaishow.com is generated here, proved to have exactly one answer, and rated for difficulty before it is banked. There are 3,654 of them ready to publish, in 6×6 and 10×10, and the generator makes more on demand at any size.

Playing and sharing

Free, for anyone, forever. Link to a puzzle, post your result, print one for a classroom or a care home. No permission needed and no attribution required, though a link back is always welcome.

Embedding on your site

Free for non-commercial sites, with attribution. The embed carries a small link back to tentaishow.com; leave it in place and you are covered.

<iframe src="https://tentaishow.com/embed/easy" width="100%" height="640" style="border:0" loading="lazy" title="Tentai Show"></iframe>

Swap easy for hard to choose the size, or append a puzzle number — /embed/easy/12 — to pin a specific day. Without one you get today's, which changes at midnight wherever the reader is.

Commercial sites, apps, and anything that strips the attribution need a licence. Ask.

Print and syndication

Newspapers, magazines, puzzle books and newsletters are all welcome, by arrangement. Puzzles are supplied as print-ready vector artwork with a solution for each one, batched as far ahead as you need, and can be generated exclusively for you so they appear nowhere else — not even here.

Difficulty is measured rather than asserted: every puzzle is rated by how hard it actually is to solve, so a run of them is consistent, and an "easy" in January is an easy in December.

Getting in touch

Email support@tentaishow.com with what you publish, roughly how often, and which sizes you are after. Rates depend on frequency, exclusivity and territory.